Improvement in binders for sewing-machines



G. L. DULANEY.

' Binder for Sewing-Machine.

No. 128,216, Patented June 25,1s72-..

-vv|TNEssEs= INVENTOR= UNITED STATES PATENT OFFICE.

GEORGE L. DU LANEY, OF BROOKLYN, NEW'YORK.

IMPROVEMENT IN BINDERS FOR SEWING-MACHINES.

p SPECIFICATION. Toall whom it may concern:

Be it known that I, GEORGE L. DU LANEY, of Brooklyn, in the county ofKings and State of New York, have invented an Improved Binder-Guide forSewing-Machines; and I do hereby declare that the following, taken inconnection with the drawing which accompanies and forms part of thisspecification, is a description of my invention sufficieut to enablethose skilled in the art to practice it.

My improvement consists in combining with the two ordinary bindingguides for the opposite edges of the binding, (and which guides aresprings tending to pull them together,) an inner pair of spring guides,whose normal tendency is to separate from each other; or, in otherwords, to act in a direction the opposite of the outer ones.

By this construction, whenever the outer guides are separated by thethickness of the fabric to be bound, (and which lies between them,) theends of the inner springs (and which bear against the double or foldedpart of the binding) are coincidently separated to precisely the sameextent whether the fabric and its binding be thick or thin, thus alwaysautomatically preserving the proper relation to and bearing and guidingaction upon the out er side of the folded binding.

Figure 1 shows, in perspective, a binder with my improvement; and Fig. 2shows the inner parts detached.

A is an ordinary binder-plate, having the usual bent lips 1 2 for theedges of the binding, and provided with means for securing the same tothe bed-plate of a sewing-machine, as customary. These two lips may beso connected as to be adjusted in position relatively to each other, sothat they may be projected a to variable distances beyond each other, as

Specification forming part of Letters Patent No. 128,216, dated June 25,1872.

has been heretofore done. Attached to the adjustable slide-plate B,which may be shifted in position and held there by the set-screw O andslot 3, are an upper and lower spring-blade, 4 5, both of which exert aconstant pressure outward and against the inward pressure of the plates6 7 of the binder-plate A. Whenever 6 and 7 are for any cause separated,blades 4 and 5 must separate by their own action; and their forwardends, against which the rounded double of the binding abuts, are madeflaring enough to form an easy guide for the same, and so as always tobear upon the binding at the proper points whether the material to bebound be thick or thin, and however widely they may separate, thisseparation being by the more force of their own inherent resilience. Dis a rigid guide attached to the lower spring-blade 5.

The outer plates 6 7, being stiffer than the inner blades 4 5, overcomethe latter in closing, and compel them to close corresponding ly, whilethe separation of the plates 6 7 permits the corresponding separation ofthe blades by their own force, the vertical movement of the upper platethus always insuring, as a consequence, the automatic and immediateadjustment of the upper blade nearer to or further from the lower one,and adapted for the goods to be introduced.

I claim In combination with the binder-blades, the interposedspring-plates, the latter springing outward against the stronger forceof the former springing inward, both being thus selfadjusting verticallyand simultaneously, but in opposing directions G. L. DU LANEY.

Witnesses:

AUGUST MORGENSTERN, J. W. DU LANEY.

